Window structure



June 28, 1938. A. J. ROGERS 2,122,182

wmnow STRUQTURE 2 Sheets-Sheet 1 Filed April 7, 1957 FIG. 2

INVENTOR ADDISON J. ROGERS WM,% AT omv June 28, 1938. A. J. ROGERS- wnmow STRUCTURE Filed April 7, 1937 2 Sheets-Sheet 2 5 5 M K m E 1 VR A 4 N fl w 4 m D 1 W Y B Patented June 28, 1938 its orrie .5 Claims.

This invention relates to improvements in window structure.

Windows of the sliding type are often difficult to move because of tight engagement of the sash with the engaged portion of the frame and one of the objects of the present invention is to provide a laterally extensible and retractable sash which by manipulation may be freed from the frame in order to more readily move the same.

Great difficulty, expense and danger of injury is incurred in obtaining access to the outside surface of windows of a building structure for purposes of painting, repairs or washing of the glass. An object of the present invention is to facilitate access to the outer surface of sliding windows from within the building, To this end the sash is so mounted in the frame and so constructed that its side portions may be disengaged from the frame, permitting the sash to be moved entirely or partially out of the general plane of the frame and manipulated to bring the outer portion of the sash within reach of a person inside the building. A special form of such construction illustrated provides a pivoted sash with retractable side portions in which the side portions when retracted clear the frame and the sash guides, so that the sash may be turned on its pivot to bring the outer surface thereof within reach of a person inside the building.

Other features of my invention comprise means for counterweighting the sash in the usual manner, such counterweight means being arranged to exert its effect on the sash at all times. Also means is provided for holding the extensible side portions of the sash in retracted position. Other novel features reside in the specific construction of the parts whereby the extensible side members form substantially rigid lateral extensions of the sash and prevent the entrance of weather.

Another feature of my invention is the combination of a novel Weatherstripping means with a laterally expansible sash.

In the drawings, Fig. 1 is a view in elevation of a double hung window including a frame and upper and lower slidable sash members; Fig. 2 shows the structure of Fig. 1 with both sashes in tilted position; Fig. 3 is a partial longitudinal sectional view through one of the side rails of a sash of Figs. land 2; Fig. 4 is a transverse section through a side rail and a portion of the frame taken generally along the line 4-4 of Fig. 3; Fig. 5 is a sectional view similar to Fig. 4 showing the extensible portion of the sash in retracted position; Figs. 6 and 7 are partial sectional views along similarly numbered lines of Fig. 3; Figs. 8

and 9 are detail views showing the attachment of the counterweight cord to the sash pivot pin; Fig. 10 is a detail sectional view showing means for holding the pivot pins in frictional engagement with the frame; while Fig. 11 is a modified form of side member retracting means.

My invention may be adapted to slidable sash of any sort. For instance, it is equally applicable to metal and wooden sash and to sash of other than rectangular form although I have illustrated the rectangular formas it is by far the most common type.

Pivoted sash have heretofore been constructed wherein the stop members normally engaging and sealing the side edges of the sash are discontinuous. For instance, one form of such sash'provides an inner stop member on one side of the sash pivot and an outer stop member on the opposite side of the pivot pin. My construction is different from this in that I provide uninterrupted and continuous stops on both the inner and outer faces of the sash. Another form of pivoted sash provides removable stop members which must be moved when the sash is to be pivoted. My invention differs from such construction in that the stop members, bothinner and outer, are permanently fixed in place.

I have illustrated my invention as applied to. a common type of window structure comprising a frame I 0 in which are slidable upper and lower sashes H and. I2 respectively. This window structure as is usual is provided with an inner stop [3, an intermediate stop I4 and an outer stop l5. All of these stops are permanently fixed in place and are uninterrupted from top to bottom. The upper sash slides in the frame between the stops l4 and I5 and is provided with a sash cord l6 which is connected to the sash H and passes over a pulley I l and carries at its other end within the frame a counterweight not shown. In a like manner the lower sash l2 slides in the groove between stops [3 and M and has a sash cord l8 attached to the lower sash and passing over a pulley l9 and provided with a suitable counterweight. v 1

While it would be possible to retract one side edge portion of the sash suficiently to clear the frame and the stop members, to accomplish my purpose I prefer to make opposite side edges of the sash retractable as shown. The construction here shown is similar for both the upper and lower sash and is the same on both sides of a. I

applies to all of the side edges shown. Each side rail of the sash, as for instance the side rail 20, has the main portion thereof cut so that the dimension of the sash from side to side is less than the distance between opposite stop members, that is to say, the main portion of the sash will pass freely through the frame. Opposite side edges of the sash are then provided with strip members 2! preferably of metal and bent so as to coact with the sash in both retracted and extended position so as to form substantially rigid lateral .extensible portions of the main sash.

To this end, with the form of sash herein illustrated, the sash rail 2|] is rabbeted as at 22 to provide a central groove extending longitudinally of each side edge of the sash; The strip 2| is then given a shape corresponding to the section of the sash, as is best shown in Figs. 4 to '7. In this form of construction the side edge portion 2! has parts 2m slidable along the inner and outer faces of the sash rail and having a very slight clearance therefrom of the order of ,4; inch. The metal of the strip member then extends outwardly to provide the portions 2Ib which enter between the stops of the frame. The central portion of the strip member is then bent inwardly to provide the portions 210 which engage the walls of the groove 22. The walls of the groove are substantially parallel with the inner and outer faces of the sash rail and the coacting parts of the strip 2! are correspondingly formed so that the portions 21a and 210 engage like portions of the sash to perform a double function. In the first place the strip is firmly supported so that it provides a substantially rigid extension for the side rail 29, and in the second place the strip parts engaging the main sash seal the structure against weather. The portions 2Ic are connected by the portion Zld as indicated. Preferably the ends of the strips 2! are closed in by portions Me at each end, making the side edge portions of a strong box-like character.

By forming the side edge portions in the manner described, I may use a metal of comparatively light gage, say for instance steel of 28 gage, and the longitudinal deformations give sufficient strength to the side edge portions that the sash is as impregnable as the usual sash not provided with my improved features.

The sash may be counterweighted in any suitable manner but in the form shown I have provided alined pivot pins 23 on opposite side edges of the sash secured to the side rails 20 in any suitable manner. For instance, as shown in Figs. 3 and '7, a plate 24 is secured in the sash rail and the pivot pin is threaded in the plate. The sash cord 16 or I8 is secured to the pivot pin 23 on each side, the construction being such that the sash may pivot without disturbing the sash cord connection. To this end the pivot pin may be rotatable in the sash rail or the sash cord connection may be rotatable on the pivot pin. I have illustrated this latter structure wherein the cord i6 is secured to the loop 25a of a member 25 which has another loop 252) in a plane normal to the plane of loop 25a and within which the pin 23 rotates. A spring clip 26 is provided to hold the member 25 on the pin 23. The strip member 2| is provided with a suitable opening at 27 to accommodate the pin 23. With this construction the strip 2| may be extended and retracted without interfering with the counterweight means and the sash may be tilted without interfering with the counterweighting as the pin 23 rotates in the loop 251).

Means is provided for extending and retracting the strip members 2| relative to the associated sash. Inthe form shown flat springs 28 are provided between the strip members and the sash rail in suitable number and location to bias the strip members outwardly in a uniform manner throughout the length of the sash. For instance a suitable arrangement is the provision of springs in the groove 22 located approximately one-third of the distance from both the upper and lower edges of each sash to the center, that is to say, two springs of the type shown are provided for each side edge portion or strip member 2| for a 30 x 30" sash. Suitable means is provided for retracting the side edge portions against the action of springs 28 and these may be suitable handles or clips serving to retract the side edge portions whether or not they are provided with means for holding the side edge portions retracted. One such construction comprises a handle 29 having its ends connected to pins 30 extending through the sash side rails and connected with the side edge portions 2!, as for instance by the enlarged heads 3!. Upon pulling of the handle 29 inwardly, the connected side edge portion is retracted.

A simple means for holding the side edge portions retracted is shown in Figs. 4 and 5 where cam portions 29a are constructed rigid with the handle 29. As the handle is pivoted about the pivot connection 35311 with the pins 30, the cam portion 29?) engages against the side rail of the sash and holds the side edge portions 2! in retracted position as shown in Fig. 5. It will be obvious that with the side edge portions 2| in this retracted position they are drawn in suificiently to clear the stops M and IE or [3 and M as the case may be, permitting the sash to pivot about the pins 23. Each sash may thus be turned inside out, giving easy access to the outer portion of the sash from the interior of the building. When the side edge portions are again extended they engage within the frame It] and support the sash for the ordinary sliding movement.

Combined with my laterally extensible sash I may provide a very efficient weather strip. This is indicated in Figs. 4 to 7 and may comprise one or two L-shaped metal strips 32 having a leg 32a secured to the frame H) and a leg 32b yieldingly engaging against that portion of the strip member 2! which extends inwardly to provide the portions 210. A seal is thus provided at the point 32c in any of the adjusted positions of the sash and, as illustrated, with two such weather strip members 32 a double seal is provided.

Means may be provided, if desired, to hold the pivot pins 23 in place relative to the frame while the sash is pivoted. One such device is shown at 33 in Fig. 10. A thimble portion 33a. of the device embraces the end of pin 23. A base portion 331) comprises a plate narrow enough to fit between the strip portions Zlc and as long as desired. A spring 34 biases the device 33 into frictional engagement with the frame If).

A modified form of side-portion retracting means is shown in Fig. 11. Spaced along the sash rail are the members 35. The retracting pin-3E! has the same function as the pins 30 previously described. A projection 36 at the inner end of the pin enters the cam slot 3'! in slide 38. Thisslide has guides 39 secured to the sash and may be moved by handle 40. By pulling the slide downward the pin an is cammed inward and retracts that portion of member 2| connected therewith. These devices render it easy to retract the side edge portions and to hold them retracted while the sash is tilted.

What I claim is:

1. In a window structure, a sash, a frame having portions adjacent opposite side edges of said sash, each of said opposite side edges of said sash having inner and outer parallel faces and a groove between said faces extending longitudinally of each side edge, said groove having walls parallel to said faces, and a metal, strip member coextensive with each side edge and normally spaced therefrom, each strip member having parts engaging said parallel faces and walls, spring means normally maintaining said strip members in extended position, said frame having inner and outer stops engaging said members in said extended position, counterweight means for said sash, and means for retracting said strip members to clear said stops.

2. In a window structure, the combination of claim 1 including an uninterrupted weather strip coextensive with a side edge of said sash and engaging said frame and one of the walls of said groove.

3. In a window structure, a frame, a sash slidable in said frame, said sash having a main portion and retractable side edge portions on opposite side edges of said main portion, alined pivot pins secured to opposite side edges of said sash, a member carried by each pivot pin and having a flat surface adapted frictionally to engage said frame, and a spring between each pin and its associated member for holding eacn member in engagement with said frame.

4. In a window structure, a frame, a sash slidable in said frame, said sash having a main portion and laterally extensible edge portions on opposite side edges of said main portion and substantially coextensive with said side edges, each side edge portion being a single sheet of metal directly engaging said frame when in extended position, said frame having substantially uninterrupted stops engaging the outer and inner faces of each side edge portion when said portions are in extended position, the parts being so arranged that said edge portions in retracted position clear said stops, said side edge portions having parts closely engaging the inner and outer faces of said main sash portion throughout the length of said side edges for substantially sealing the joint between said side edges and edge portions and for holding said edge portions in extended position substantially rigidily alined with said main sash portion, alined pins on said opposite side edges of said main sash portion and secured thereto and extending outwardly through the associated side edge portion, counterweights secured to said pins, and means for extending and retracting said side edge portions.

5. In a window structure, a sash having opposite parallel side edges, a frame parallel to said sash adjacent each side edge, said frame having inner and outer stops for guiding said sash, said sash being of less width than the distance between said stops from side to side of said frame, a strip member along each side edge of said sash, each strip member having free edge portions coextensive with said sash slidingly and closely engaging the inner and outer faces of the sash, each said member being adapted with said edge portions engaging the sash to be extended outwardly between the stops of the frame, means for extending and retracting said strip members, alined pins one on each side of said sash and secured thereto, each strip member having an inwardly extending centrally located longitudinal groove running at least from each pin to the top of the sash, a sash cord secured to each pin and extending along said groove in the associated strip member, and a counterweight secured to each sash cord.

ADDISON J. ROGERS. 

